noun.
An aircraftpilot. The use of the word may imply claims of superior airmanship, as in navy aviator vs. air force pilot.
noun.
An experimenter in aviation.
noun.
A flying machine.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
someone who operates an aircraft
Word Usage
"The term aviator (as opposed to "pilot" or other terms) was used more in the early days of aviation, before anyone had ever seen an airplane fly, and it had connotations of bravery and adventure."